interesting LFO

[Marc.yo]

i was messing around with ideas in my head and i came up with this:

its a sine wave running into an inverting op-amp...nothing special...however. there is an astable 555 in the feedback loop of the osc set at 480k Hz

messy schematic:

waveform:


if we were to zoom in further it would be a farely pure sine wave. just something interesting. i didn't know what it would look like when i made it so i decided to try it out on a simulator...haven't made it yet.

you could also take the out output of the the waveform at the output of the op-amp is simply a parabola... don't know the slope but someone could probably figure it out

and the weird waveform is taken at the output (pin 3) of the 555....so you could put an output at pin 3 of the 555

and the sine wave is set at 1kHz

the signal at the op-amps output could be used as a sweep frequency for a different 555 as well by plugging it into pin 5 of the 555

[Marc.yo]

i'll be really blunt about this....no clue why it works or how it does it...but i think its interesting

[snap]

chopping sinecrusher?

[Marc.yo]

yeah, i'm gonna try this on guitar as soon as i get a 555 around....don't know where all of mine went